CVE-2024-48873 wifi: rtw89: check return value of ieee80211_probereq_get() for RNR
A missing null check in the rtw89 WiFi driver can cause a kernel crash when processing probe requests, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-48873?
CVE-2024-48873 is a medium-severity vulnerability in Linux kernel, published on 11 Jan 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw89: check return value of ieee80211_probereq_get() for RNR
The return value of ieee80211_probereq_get() might be NULL, so check it before using to avoid NULL pointer access.
Addresses-Coverity-ID: 1529805 ("Dereference null return value")
Weakness: CWE-476
Which versions are affected by CVE-2024-48873?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-48873?
Apply the vendor's patch.
Is CVE-2024-48873 being exploited?
There is no known exploitation of CVE-2024-48873 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-56118, BELL-CVE-2024-48873, DEBIAN-CVE-2024-48873, GHSA-qvj7-hg6c-8g8h, ROOT-OS-UBUNTU-2204-CVE-2024-48873, UBUNTU-CVE-2024-48873.